Updated: May 19, 2026

Thomas J Seifert

NETCloudflare, Inc.SEC CIK: 0001473289
Estimated Net Worth
$414 Million3.6%vs Last Year
Last Updated: May 19, 2026 11:37 PM EST

Transaction Summary

Total Transactions185
Buy-Sell Ratio0.21
Buy Transactions31
Sell Transactions149

Transaction Volume

Total Volume$297.76M
Net Volume-$297.41M
Buy Volume$176.56K
Sell Volume$297.58M

Trade Analysis

AVG Trade Size$1.61M
Largest Trade$12.16M
Most Active MonthJun
Most Active Year2023

Trading Sentiment

OverallBearish
Recent TradeSelling
Last 90 Days0 Trades
ConvictionNone

Net Worth & Trading Activity Over Time

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Monthly Trading Pattern

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Past Insider Trading and Trends

Thomas J Seifert has an estimated net worth of $414 Million. This is based on reported shares across multiple companies, which include Cloudflare, Inc., ADVANCED MICRO DEVICES INC, SYMANTEC CORP, IPG PHOTONICS CORP, and WOLFSPEED, INC..



2021 was Thomas J Seifert's most active year for acquiring shares with 59 total transactions. Thomas J Seifert's most active month to acquire stocks was the month of May. 2021 was Thomas J Seifert's most active year for disposing of shares, totalling 184 transactions. Thomas J Seifert's most active month to dispose stocks was the month of January. 2020 saw Thomas J Seifert paying a total of $718,419.10 for 836,506 shares, this is the most they've acquired in one year. In 2025 Thomas J Seifert cashed out on 1,049,629 shares for a total of $86,465,164.74, their largest year based on trade value.

Holdings & Transactions

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